| Houghton Regis to Karditsa | 1,377.92 mi (2,217.55 km) |
| Houghton Regis to Kastoria | 1,297.12 mi (2,087.51 km) |
| Houghton Regis to Katerini | 1,355.61 mi (2,181.65 km) |
| Houghton Regis to Keratsini | 1,511.21 mi (2,432.06 km) |
| Houghton Regis to Kerkyra | 1,292.41 mi (2,079.93 km) |
| Houghton Regis to Kiato | 1,477.19 mi (2,377.31 km) |
| Houghton Regis to Kifisia | 1,512.70 mi (2,434.45 km) |
| Houghton Regis to Kilkis | 1,335.76 mi (2,149.71 km) |
| Houghton Regis to Komotini | 1,430.41 mi (2,302.01 km) |
| Houghton Regis to Korinthos | 1,487.35 mi (2,393.66 km) |
| Houghton Regis to Koropi | 1,524.08 mi (2,452.77 km) |
| Houghton Regis to Korydallos | 1,511.59 mi (2,432.68 km) |
| Houghton Regis to Kos | 1,703.21 mi (2,741.05 km) |
| Houghton Regis to Kozani | 1,326.98 mi (2,135.57 km) |
| Houghton Regis to Lagos | 1,416.36 mi (2,279.41 km) |
